Novak Djokovic and Serena Williams underlined their status as title favorites by cruising into the fourth round of tennis’s Australian Open with straight-set victories. Li Na and David Ferrer also advanced in Melbourne as yesterday’s temperatures topped 100 degrees Fahrenheit (38 Celsius) for the fourth consecutive day.

World No. 1 Rafael Nadal and Roger Federer won at tennis’s Australian Open as intense heat again enveloped Melbourne. Defending champion Victoria Azarenka and Maria Sharapova also reached round three, while Juan Martin Del Potro became the highest seed to exit.

Defending champion Andy Murray rallied from a set down to complete the men’s quarterfinal lineup at the U.S. Open, where top seeds Novak Djokovic and Serena Williams lost a combined three games in dominant wins.

Five-time champion Roger Federer looked for the positives after his earliest exit from the U.S. Open in 10 years prevented a first meeting with Rafael Nadal at the tennis season’s final Grand Slam tournament.